G862187T9 : Check For Failure at HLDF

Pinpoint Tests

NOTE: Visually inspect for any of the following conditions and rectify any fault identified prior to carrying out any tests on the MOST Network.

^ Any sharp bends in the optical fibre harness (check for this before disturbing any module or connector).
^ Incorrect engagement of any optical connectors
^ Incorrect engagement of any electrical connectors
^ Damage to the optical fibre harness (chafing, abrasion, kinking, cuts, break, etc)
^ Incorrect assembly of the optical network
^ Unless otherwise stated, ensure vehicle ignition status is set to 'ON' when carrying out MOST Network tests.

G862187t9 : CHECK FOR FAILURE AT HLDF

1. Connect the optical Link provided to MOST intermediate connector C23T.

^ Is the Rx lamp/LED permanently 'ON' and the HLDF permanently displaying blank screen?

->Yes
Check/repair power feed and ground lines to HLDF. If power feed and ground lines ok, install a new HLDF. Video Display

->No
Check integrity of intermediate connector C23T connections, and re-test vehicle.